Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1dd136af7efa49ccc77b64c5ab94a2e21f091914c1158e572853074c893f18d3' 
  AND token = 'bpuKMNZoNsIkvQR3KkHVRZ0eoykr1EW8XMxFJe6oxI4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}